Machine for operating upon webs of material.



C. R. SEYMOUR & 0 M. HOCH. MACHINE FOR OPERATING UPON WEBS 0F MATERIAL.

APPLICATION FILED MAY 23, I916.

Patented Apr. 8, 1919.

4 SHEE SSHEEI'I I 5 wvamtozs C. R. SEYMOUR & O. M. HOCH. MACHINE FOR OPERATING U PON WEBS OF MATERIAL.

APPLICATION FILED MAY23, I9I6. LQQQEISQ Patented Apr. 8, 1919.

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C. R. SEYMOUR & 0. M. HOCH.

MACHINE FOR OPERATING UPON WEBS 0F MATERIAL.

APPLICATION FILED MAY23v I916.

1 ,299,51 8. Patented Apr. 8,1919.

4 SHEETS--SHEEI 3 c. R. SEYMOURKL 0. M. HOCH.

MACHINE FOR OPERATING UPON WEBS 0F MATERIAL. APPLICATION FILED MAY23. I9l6.

1 ,299,5 1 3 Patented Apr. 8, 1.919.

mg press was not rra stars ran oar-re CHARLES R. SEYMOUR AND OTTO M. EDGE, OF ROCHESTER, NEW YORK, ASSIGNORS TO M. D. KNOWLTON COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed May 23, 1916. Serial No. 99,453.

To all whom it may concern:

Be it known that we, CHARLES R. SEY- MOUR and OTTO M. Hoorr, citizens of the United States, and residents of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Machines for Operating Upon Webs of Material, of which the following is a specification.

This invention relates to that class of machines which are intended to perform certain operations upon a web of material as it passes through the machine, such, for instance, as cutting the same into sheets of predetermined length. In this class of machines, it is often necessary to perform the desired operations on the w b at predetermined places on the web, and, although the parts of the machine may be designed to bring the points of the web at which it is to be operated upon in proper position at the proper time, this does not always happen. For instance, it is often necessary to out into sheets, a web upon which patterns have been printechthe cuts being a predetermined distance apart and corresponding with the patterns on the web. If during printing of the web, the register of the print exact, or if the web had shrunk slightly since the printing was done, it is obvious that the points at which the web should be cut wowld not be equally spaced, and hence if some provision were not made to prevent it, the cutter would not cut the web at the proper places between the patterns. In other words, a slight variation might occur between the length for which the machine was actually geared to cut and the distance from cutting point to cutting point on the web. j

It is the object of the present invention to provide improved means for preventing the above-mentioned operation upon the web at the wrong places. This is preferably done by advancing or retarding the movement of the web through the machine when it is discovered that the operations are not being performed on the web at the proper places. The means for effecting this is associated with the feed roll of the machine,

and in the preferred form of the invention, comprises a differential device through which motion is transmitted to the feed roll during the normal operation of the machine. By actuating the differential: device in the manner hereinafter described, the feed roll may be advanced or retarded in order to effect the above-mentioned advancing or retar-ding of the web.

As. will hereinafter appear, the invention is applicable to practically any machine involving the use of a. feed roll and which is intended to operate upon a web of moving material. However, for the sake of illustration, the invention will be herein described in connection with a sheet-cutting machine of a well-known type.

The accompanying drawings illustrate such a cutting machine with the invention applied thereto. In the drawings Figure 1 is a side elevation of a sheetcntting machine commonly known as a-roll sheet cutter, the improved means' for advancing and retarding the movement of the web being associated therewith in the manner hereinafter described;

Fig. 2 is a partial end elevation of the differential device for 'ef'fectingthe advancing and retarding of the web,

Fig. 3 is a vertical section taken on the line 33 of Fig. 2; and.

Fig. 4 is a vertical section through the differential device taken on the line LA of is the sheet cutting machine disclosed in the drawings is of a well-known type, a general description thereof will suffice for the present purpose. The framework of the machine is denoted generallyby the reference character A, .in one. end of which is mounted the roll holder 1, upon which the roll of stock, indicated at 2, isqmounted. The stock operated upon may. beta web of paper or any other material; The web is led from the roll 2 over a sorcalled straight edge 3 to remove the curl from'the web of material inthe wellknownmanner. The web then passes between apair of rolls 4, 5, which serve to pull the web. from the roll 2 and feed it forwardly. In some cutting inachines of the present type, the web is then passed between a pair of feed rolls and introduced directly to the cutter which'serves to cut the web into sheets, but in other machines, a slitting and rewinding attachment is provided which serves to first slit the web longitudinally before the cutting operation. The machine disclosed in the drawings embodies this slitting and rewinding attachinent, the slitting knives being shown at 6,. 7. The Web passes between these knives after it leaves the rolls 4 and 5 and is slit longitudinally to reduce that portion of the web which is to be subsequently cut into sheets to the proper width. The edge portionof the web so trimmed by the cutters 6 and 7 is then passed under a guide roll 8 and over a second roll 9 to the roll of rewound stock, indicated at 10. It will be understood that the roll 10 is only the rewound trimmed portion of the web, for that portion of the web which is to be cut into sheets continues to pass forwardly through the machine between a pair of feed rolls 11, 12. The web is fed by these feed rolls over a stationary knife-blade 13, and a rotary cutter 14 serves, by cooperating with the stationary knife blade 13, to cut the web into sheets of predetermined length which fall upon a conveyer 15 and are discharged from the machine. The parts of the machine are positively driven in timed relation by means of the gears, sprockets and chains, indicated; in the drawings. As the present invention concerns only the gearing which serves to drive the feed rolls, the gearing for driving the other parts of the machine will not be herein described. However, the various gears, sprockets and chains for driving these other parts of the machine are all indicated in the drawings, an inspection of which will clearly show the manner in'which the various parts are driven. I

In a machine of the type described above, the advancing and retarding of the web is accomplished by advancing or retarding the feed rolls 11 and 12 by means of a difi'erential device associated with the lower'feed roll 12. This difi'erential device is shown "in detail in Figs. 2, 3'and 4, to these figures,

and by referring in addition to Fig. 1, it will be noted that the differential device comprises a gear 16 (see Fig. 4), which is loosely mounted upon the shaft-l7 of the lower feed roll. The gear 16 is provided with external teeth 18 and also with internal teeth 19. The external teeth 18' mesh with the teeth upon an intermediate gear 19, which is driven from the maindrive shaft 20' by means-of the pinion'21 keyed-to the latter. The internal teeth 19 of the gear 16 mesh with the teeth on' two gears20 and 21 disposed at opposite side'sof the shaft'17. -Adjacent the gear 20 and rigidly secured, thereto is apinion'22 and likewise the gear21 has secured Fig. 1. It will now thereto a pinion 23. This pair of double gears, to Wit, 20, 22, and 21, 23 are mounted to freely rotate in a two-part cage, one part of which is shown at 24, and is mounted to the cage, to wit, the parts 24 and 26, are.

bolted together by means of a plurality of bolts 27 shown in Fig. 3. It will be noted from Fig. 4 that the cage comprising the parts 24 and 26 carry small axles or stub shafts 28 and 29 and it is upon-these stub shafts that the double gears 20, 22, and 21, 23 are mounted to rotate.

The pinion 22 of the double gear 20, 22 and the pinion 23 of the double gear 21, 23 mesh with a gear 30 keyed to the shaft 17. It is, therefore, obvious that if the cage 24, 26 be held stationary, the gear 16 in being driven from the gears 19 and 21 will, through the intermediary of its internal teeth, rotate the double gears 20,22 and 21, 23, and these will transmit rotation to the gear 30. The latter being keyed to the shaft. of the lower-feed roll, it is obvious-that said feed roll. is driven from this gear""30. During the normal operation of the machine, the cage 24 and 26 is held stationary to produce this result, for the reason that the cage mem-.

the shaft 33 is provided with a beveled pinion 35 which meshes Withi'a corresponding beveled pinion 36 carried by a second shaft 37, the end of which is also journaled in the bracket 34. The shaft 37 is disposed substantially at right angles to the shaft 33 and extends to a suitable point where it may be actuated by a hand wheel 38, as shown in be evident that during the normal operation of the machine, the cage 24, 26 is locked against movement by means of the worm 32, but that this cage can be turned at any time by actuating the hand wheel 38. This will turn the Worm 32, and hence shift the position of the part 26. This shifting of the cage will bodily shift the position of the double gears'20, 22, and 21. 23, and in so shifting, they will serve to ad- Vance or retard the movement of the lower feedroll through the. intermediary of the gear 30 depending upon in which direction the hand wheel 38 be turned. Motion is transmitted from the shaft 17 of the lower gearing between the two feed rolls, it is obvious that when the lower feed roll is advanced or retarded by the differential device,

the upper feed roll will be turned a corresponding amount to advance or retard the movement of the web of material passing between the feed rolls.

Secured to the shaft 17 of the lower feed roll and located adjacent to the gear 16 is a gear 43 from which the slitting knives 6 an 7 are operated when the slitting and rewinding attachment above referred to is used. The gears and pinions interposed between said gear 43 and the slitting knives 6 and 7 are shown in Fig. 1, but as they form no part of the present invention, they. will not be described in detail.

If desired, the differential device may be inclosed by a suitable casing 44 In the normal operation of the machine, the main drive shaft 20 is rotated in any suitable manner, such as by means of a belt passing over the pulley 45, shown in Fig.

' 2, and said drive shaft through the intermediary of the pinion 21 and gear 19 will rotate the external-internal gear 16. Due to the fact that the cage carrying the double gears 20, 22, and 21, 23 is held stationary by the worm 32, said double gears will rotate by reason of the fact that the larger gears 20 and 21 mesh with the internal teeth of the gear 16. The smaller gears 22 and 23 meshing with the gear 30 will rotate the latter, and hence the feed rolls will be rotated to feed the web through the machine. If it be noted that the transverse cuts are not being performed in the web at the proper places, the web may .an advancing or retarding of the gear 30,

and also the feed rolls. The feeding of the webthrough the machine can, therefore. be controlled so that the points at which the web should be cut will be in proper position with respect to the cutter at the proper time. The mechanism for so controlling the feed of the web is comparatively simple in its nature and compact in construction and is operativ'e to effect the advancing and retarding 1 diate shaft and having drive shaft, of

be advanced or retarded sufficiently to cause the cutter to cut the web mounted gear and means of the web durin the operation of the machine, and while dhe web is passing through the machine.

It will now be evident that the differ ntial device herein disclosed is not limited in its use to a machine of the type herein shown, but may be used in combination with most any machine which operates upon a web of moving material and in which it may be desirable to advance or retard the movement of the web for purposes similar to that herein set forth. Q

What we claim is 1. In a machine of the class described, the combination with a feed roll and a main drive shaft, of an intermediate drive shaft, gearing between the roll and intermediate shaft, a gear loosely mounted on the intermeinternal and external teeth, gearing between the main drive shaft and external teeth, a cage loosely mounted on said intermediate shaft, pinions carried by the cage, a gear rigid with the intermediate shaft, pinions rigid with the first mentioned pinions, the first nrenitioned pinions in-' tel-meshing with the aforementioned internal teeth and the second mentioned pinions intermeshing with the last mentioned gear and means for normally holding the cage stationary but capable of rotating it in either direction.

2. In a machine of the class described, the combination with a feed roll and a main an intermediate drive shaft, gearing between the latter shaft and the feed roll, a gear loosely mounted on the interme- -diate shaft and having a gear connection with the main drive shaft, said loose gear having internal teeth and having an extend ed hub, a twopart cage, one of-said parts being mounted on the aforesaid hub and the other being mounted directly on the intermediate shaft, stub shafts extending between and supported by the two parts of the cage, pinions mounted on the stub shafts and intermeshing with the last mentioned gear and with the internal teeth of the loosely for normally maintaining the cagestationary but capable of rotating it in either direction.

3. In a machine of the class described, the combination with a drive shaft, of an intermediate drive shaft, gearing between the latter shaft and the feed roll, a gear. loosely mounted on the intermediate shaft and having a gear connection with the main drive shaft. said loosegear having internal teeth and having an extended huflo, a. two -'pa1t cage. one of said parts being mounted on the aforesaid hub and the other being mounted directly on the intermediate shaft, stub shafts extending between and supported by the two parts of the cake, two sets of pinions mounted on the stub shafts and interfeed roll and a main meshing With the last mentioned gear and Monroe, and State of New York, this 15th with the internal teeth of the loosely mountday of May, A. D. 1916.

ed gear, the pinions of each set being 00- CHAS. R. SEYMOUR. axially mounted, and means for normally OTTO M. HOCH. maintaining the cage stationary but capable Witnesses r of rotating it in either direction. THOS. D. PATTON,

Signed at Rochester, in the county of HUBERT J. MARTIN. 

